Falling Through Darkness, by Carolyn MacCullough

When Ginny loses Aidan, her life basically ends, and anything that was meaningful before isn't now. She rejects her friends and cuts herself off from her father. Her only source of comfort and communication is the new border Caleb, with whom she shares some painful common background, and feels that maybe she has found a replacement for Aidan or at least a soulmate. But the sceret that tears apart her life is that when Aidan died that night, it wasn't an accident....

MacCullough does a nice job of jumping around through the narrative timeline telling us just what we need to know when. This is good storytelling with some wonderful observations (about growing up, the nature of children of all ages, and grieving). It is a TERRIBLY depressing book though, so don't expect any happy ending or feel good moments.